Intel 4th-Gen Xeon Could Get a Boost with PCIe 5.0 Support

Intel’s next generation Xeon processors could provide support for new technology to speed up servers according to the latest leaked images. Leaked schematics for a tech example of Intel’s 4th generation Xeon, codenamed Sapphire Rapids, indicate that the processor may add support for PCIe 5.0 and new 8-channel DDR5 memory. Support for the former would make Sapphire Rapids the first server processor to add PCIe 5.0 support, while support for the latter would bring Intel’s server into memory parity with its recently introduced Alder Lake processors, which will be available later this year would.

For its part, Intel has not confirmed any information in the leak, but Wccftech reported that the circuit diagrams published by YuuKi-AnS show that Intel’s powerful server processor can be used in high performance computing (HPC) systems such as exascale computers. In a slide deck, a configuration shows that two Sapphire Rapids processors are paired with six Intel Xe-based graphics with a uniform system memory.

Photo credit: YuuKi-AnS, via Wccftech

The GPU in this system is the Ponte Vecchio GPU recently introduced by Intel, which demonstrates the full capabilities of the company’s Xe architecture on the graphics side. The chipset is supplied in two tiles with a total of 8,192 cores, which offer a performance of 21.1 TFLOPs. In addition, a separate four-tile design is being developed that doubles the output to 42 TFLOPs. For comparison, the GPU on Microsoft’s Xbox Series X game console can power 12 TFLOPs.

Intel’s exascale computer system is expected to ship in 2021, according to the leaked slide.

Photo credit: YuuKi-AnS via Wccftech

When transitioning from the Ice Lake SP architecture to the Sapphire Rapids SP, a separate slide indicated that Intel will be using a new core design. However, both Ice Lake SP and Sapphire Rapids SP are expected to be based on a 10nm process and use the Eagle Stream platform. The leaked sample revealed that the Sapphire Rapids chip has a base clock rate of 1.3 GHz and is manufactured using Intel’s 10 nm Enhanced SuperFin process. The chipset has four cores and four HBM stacks. A new LGA4677-X socket is used.

But the star of the show is the support for PCI Express 5.0, which integrates high bandwidth storage and Compute Express Link 1.1. Compared to PCIe 4.0, the new standard doubles the throughput bandwidth with a data rate of 32 GT / s. The reduced latency is also an important part of PCI Express 5.0, so you can expect faster data center performance with the new Xeon processors from Intel .

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